نتایج جستجو برای: electrolysis method

تعداد نتایج: 1634431  

2009
W.-S. Zhang

Pre-electrolysis at the boiling point in open Pd|D2O cells is an effective method to activate a palladium cathode, which can produce excess power in subsequent electrolysis in closed systems for several months. The reproducibility is 23/45. Another characteristic of excess heat is the apparent resistance of electrolytic cell changes irreversibly with temperature.

Journal: :Chemical communications 2015
Xiumin Li Guoqing Guan Xiao Du Ji Cao Xiaogang Hao Xuli Ma Ajay D Jagadale Abuliti Abudula

A facile unipolar pulse electrodeposition combined with the thermal oxidation method was applied for fabrication of CuO/Co3O4 composites on carbon electrode for water electrolysis, and it was found that the sea anemone-like one with a 3D hierarchical structure formed at -0.8 V exhibited excellent performance for water electrolysis at a low overpotential with high stability.

2016
NAIMA BENAZZI MOHAMED ELHAFYANI

The idea of hydrogen production by water electrolysis from renewable sources is one of the most obvious methods. It could not only lead to a significant reduction in greenhouse gas emissions, but also to increase the security of energy supply due to the method of clean storage. In this paper, we have borrowed a new method for hydrogen production by adapting the electrolysis to a photovoltaic (P...

2016
Ruihong Yang Jianzhong ZHU Yingliu Li Hui Zhang

Through a variety of material screening experiments, Al was selected as the added metal and constituted a multiple micro-electrolysis system of Fe/C/Al. The metal proportion of alloy-structured filler was also analyzed with the best Fe/C/Al ratio of 3:1:1. The regular Fe/C/Al multiple micro-electrolysis fillers were prepared using a high-temperature anaerobic roasting method. The optimum condit...

Abdelkader Zarrouk, Ghizlan Kaichouh Kacem El Kacemi Mariam Khachani Miloud El Karbane Mohammed Azeem Arshad Muna Shueai Yahya

The aim of this work is to study the degradation and mineralization of antibiotic ofloxacin in aqueous medium using the Electro-Fenton method as advanced oxidation technology. In this context, Pt/carbon-felt cell was used to investigate the influence of various parameters including initial pH, different supporting electrolytes, different metal ions as a catalyst and antibiotic concentration ove...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2014
Yumi Yoshida Junya Uchida Shotaro Nakamura Satoshi Yamaguchi Kohji Maeda

This article reviews the development of a thin-layer electrolysis cell with both a thin aqueous phase and a thin organic phase for ion transfer at the liquid|liquid interface for the absolute determination of a redox-inactive ion. In particular, an improvement of the cell performance by using a conducting polymer-coated electrode in the organic phase is discussed. The applicability of the thin-...

2014
S. Angappan N. Kalaiselvi R. Sudha A. Visuvasam

The present work reports electrochemical synthesis of MgB6 from molten salts using the precursor consists of LiF-B2O3-MgCl2. An attempt has been made to synthesize metastable phase MgB6 crystal by electrolysis method. DTA/TGA studies were made to determine the eutectic point of the melt and it was found to be around 900°C. The electrolysis was performed at 900°C under argon atmosphere, at curre...

Journal: :physical chemistry and electrochemistry 0
rasoul khayyam nekouei school of metallurgy and materials engineering, college of engineering, university of tehran, tehran, iran amir peyman soleymani department of materials engineering , isfahan university of technology, isfahan, iran saeed akhavan department of materials engineering , isfahan university of technology, isfahan, iran ali ashrafi nasrabadi department of materials science engineering, sharif university of technology, tehran iran alireza aghababaei samani department of materials engineering , isfahan university of technology, isfahan, iran

this paper presents a methodology, based on the taguchi parameter design approach, for the optimization of process parameters for bismuth recovery from aqueous solutions. the process parameters considered are [bi3+], [nacl], temperature, and cathodic current density. in addition, cell voltage and current efficiency as two responses have been considered. an orthogonal array l9, the signal-to-noi...

2016
Shoji Hayashi Shuta Sugiyama Kojiro Shimura Go Tobayama Toshio Togashi

Major joining methods of dental casting metal include brazing and laser welding. However, brazing cannot be applied for electroformed metals since heat treatment could affect the fit, and, therefore, laser welding is used for such metals. New methods of joining metals that do not impair the characteristics of electroformed metals should be developed. When new coating is performed on the surface...

Journal: :Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 1999
J D Rich B P Dickinson A B Flaxman E Mylonakis

Electrolysis, a permanent hair-removal technique, involves the Molluscum contagiosum is a communicable viral disease that use of any of three different methods: galvanic electrolysis, theris confined to the skin. Molluscum contagiosum manifests itself molysis, or the blend method. In galvanic electrolysis, a needle as smooth-surfaced, firm, spherical papules with umbilication of (0.005–0.015 mm...

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